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首页> 外文期刊>Gait & posture >The dynamic balance of the children with cerebral palsy and typical developing during gait. Part I: Spatial relationship between COM and COP trajectories.
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The dynamic balance of the children with cerebral palsy and typical developing during gait. Part I: Spatial relationship between COM and COP trajectories.

机译：脑瘫儿童的动态平衡和步态过程中的典型发展。第一部分：COM和COP轨迹之间的空间关系。

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Analysis of the COM or COP movement has been a simplified method to illustrate the balance disorders in static stance and gait, but has its limitation when examined alone. Dynamic stability of 32 children with cerebral palsy (CP) was examined and compared with 10 typically developing (TD) children by measuring the displacement of center of mass (COM) and center of pressure (COP) and their spatial relationship. The children with CP were further divided into two groups based on topographical involvement, hemiplegia (Hemi) and diplegia (Di). The participants walked with their preferred speed at least 5 successful trials on a walkway with two force plates mounted in the middle. An eight-camera motion analysis was used to capture 26 reflective markers secured at the bony landmarks of the participant. The data obtained from motion analysis and force plates was used to calculate COM and COP. The results showed either of two CP groups demonstrated significantly greater peak-to-peak COM and COP displacement in medio-lateral (ML) and lower peak-to-peak COM and COP displacement in anterio-posterior (AP) direction than TD group. The root mean square (RMS) of COM-COP divergence of Hemi and Di groups were higher than that of TD group in AP and ML direction, but only the difference in ML direction was significant. Present study demonstrates that COM-COP divergence can characterize the dynamic balance of the CP children in walking, and thus assist in comparing and differentiating balance patterns.
机译：对COM或COP运动的分析是一种简化的方法，可以说明静态姿势和步态的平衡障碍，但单独检查时有局限性。通过测量质心（COM）和压力中心（COP）的位移及其空间关系，对32例脑瘫（CP）儿童的动态稳定性进行了检查，并将其与10例典型发育中（TD）儿童进行了比较。患有CP的儿童根据地形受累情况进一步分为两组，半身不遂（Hemi）和截瘫（Di）。参与者在中间装有两个测力板的人行道上，以自己喜欢的速度走了至少5次成功的试验。八摄像头运动分析用于捕获固定在参与者骨性界标上的26个反射标记。从运动分析和测力板获得的数据用于计算COM和COP。结果显示，两个CP组中的任何一个均显示中外侧（ML）的峰到峰COM和COP位移显着大于TD组，而在前后后（AP）方向上的峰到峰COM和COP位移更低。在AP和ML方向上，Hemi和Di组的COM-COP散度的均方根（RMS）高于TD组，但仅ML方向差异显着。目前的研究表明，COM-COP差异可以表征CP儿童在步行中的动态平衡，从而有助于比较和区分平衡模式。

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